types_of_people = 10
x = f"there are {types_of_people} types of people."
binary = 'binary'
do_not = "don't"
y = f"those who know {binary} and those who {do_not}."

print(x)
print(y)

print(f"i said: {x}")
print(f"l also said: {y}")

hilarious = 'false'
joke_evaluation = "isn't that joke so funny?! {}"
print(joke_evaluation.format(hilarious))

w = "this is the left side of..."
e = "a string with a right side."

print(w , e)
print(w + e)